Method StartMoving

src/widgets/ExpandingToolBar.cpp:505–563

}

void ExpandingToolBar::StartMoving()
{
   if (!mAreaParent)
      return;

   int j;

   mAreaParent->CollapseAll(true);

   mTimer.Stop();

   // This gives time for wx to finish redrawing the window that way.
   // HACK: why do we need to do it so many times???
   for(j=0; j<500; j++)
      ::wxSafeYield();

   wxBitmap toolbarBitmap = GetToolbarBitmap();

   msNoAutoExpandStack++;
   mSavedArrangement = mAreaParent->SaveArrangement();
   mAreaParent->RemoveChild(this);

   mAreaParent->Refresh(true);

   mTopLevelParent = this;
   while(!mTopLevelParent->IsTopLevel())
      mTopLevelParent = mTopLevelParent->GetParent();

   wxPoint hotSpot = ScreenToClient(wxGetMousePosition());

   hotSpot -= (ClientToScreen(wxPoint(0, 0)) -
               mAreaParent->ClientToScreen(wxPoint(0, 0)));

   mDropTargets = mAreaParent->GetDropTargets();
   mDropTarget = kDummyRect;

   wxColour magicColor = wxColour(0, 255, 255);
//   wxImage tgtImage = theTheme.Image(bmpToolBarTarget);
//   ImageRoll tgtImageRoll = ImageRoll(ImageRoll::VerticalRoll,
//                                      tgtImage,
//                                      magicColor);
   mTargetPanel = safenew wxPanelWrapper(mAreaParent, -1, //tgtImageRoll,
                                     wxDefaultPosition,
                                     wxDefaultSize,
                                     wxTRANSPARENT_WINDOW);
   mTargetPanel->SetSize(mDropTarget);

   // This gives time for wx to finish redrawing the window that way.
   // HACK: why do we need to do it several times???
   for(j=0; j<500; j++)
      ::wxSafeYield();

   mAreaParent->SetCapturedChild(this);

   mDragImage = std::make_unique<wxDragImage>(toolbarBitmap);
   mDragImage->BeginDrag(hotSpot, mAreaParent, mTopLevelParent);
   mDragImage->Show();
   mDragImage->Move(ScreenToClient(wxGetMousePosition()));